05583000 DATA: Discharge Tables, 2001

Station list Available data
ILLINOIS RIVER BASIN

05583000 SANGAMON RIVER NEAR OAKFORD, IL

LOCATION.-- Lat 40°07'26", long 89°59'06", in NW1/4SE1/4 sec.3, T.19 N., R.8 W., Mason County, Hydrologic Unit 07130008, on right bank at downstream side of bridge on State Highway 97, 300 ft upstream from a railroad bridge, 0.8 mi downstream from Crane Creek, 1.8 mi northwest of Oakford, and at mile 25.7.

DRAINAGE AREA.-- 5,093 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE

DISCHARGE: October 1909 to October 1911, December 1911 to March 1912, August 1914 to June 1919, March 1921 to September 1922, October 1928 to December 1933, October 1939 to current year. Monthly discharge only for some periods, published in WSP 1308.

STAGE: Water years 1994-2001.

SURFACE-WATER QUALITY

CHEMICAL: Water years 1978-94 and 1998.

SEDIMENT: Water years 1981, 1983-86, 1995-97.

SPECIFIC CONDUCTANCE: Water years 1979-81.

WATER TEMPERATURE: Water years 1976-77, 1979-81.

MISCELLANEOUS: Contaminants in streambed sediments, August 1996; contaminants in fish tissue, August 1996; streambank sediment size, October 1997; streambed sediment size, October 1997.

BIOLOGICAL

ALGAE: Water year 1981.

BENTHIC MACROINVERTEBRATES: Water year 1996.

FISH: Water year 1997.

HABITAT: Water year 1996.

REVISED RECORDS.-- WSP 715: 1922(M). WSP 1175: 1912(M). WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter and rain gage, and artificial control. Datum of gage is 452.88 ft above sea level (U.S. Army Corps of Engineers bench mark). Prior to Jan. 1, 1934, nonrecording gage at site 2.4 mi upstream at datum 458.66 ft above sea level. Oct. 1, 1939, to May 14, 1940, nonrecording gage at present site at sea level.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 123,000 ft³/s, May 20, 1943, gage height, 25.63 ft; minimum daily, 45 ft³/s, estimated, Jan. 21-31, 1918.
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily, 3,540 mg/L, June 9, 1984; minimum daily, 1 mg/L, Dec. 7, 8, 1996, Jan. 11, 1997.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 120,000 tons, Feb. 24, 1985; minimum daily, 1.6 tons, Dec. 7, 1996.

REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges, which are poor.

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	939	891	2110	e1250	18100	21700	3410	2650	2380	1920	706	557
2	818	874	1920	e1250	15500	21800	3350	2330	2740	1800	717	703
3	718	863	1660	e1200	e13000	20800	3270	2100	3350	1690	706	802
4	667	862	1560	e1200	11600	19000	3000	1970	3420	1650	700	659
5	689	841	1490	e1200	10600	16200	2830	1940	5050	1680	706	594

6	794	857	1500	e1250	9690	13100	3060	1940	8530	1590	713	560
7	1840	906	1490	e1250	8870	10100	3610	1950	12300	1480	665	546
8	3670	1360	1420	e1300	7810	7860	3320	1910	13400	1420	633	561
9	4540	2210	1410	e1300	9210	6730	3000	1840	16000	1390	618	585
10	4820	3220	1400	e1250	13300	5840	2940	1770	18000	1290	599	604

11	5080	4050	1410	e1250	12800	5210	3480	1730	17300	1200	578	710
12	5150	4120	1470	e1250	10600	4840	6890	1840	15300	1140	568	672
13	4800	3900	e1700	e1300	9840	4630	8510	2030	13500	1110	549	640
14	4230	3870	e2000	e1400	9650	4470	7780	2040	11800	1060	538	593
15	3470	4070	e2400	e1500	10600	4210	6350	1980	9960	1010	532	527

16	2690	4130	e2700	e1700	11000	4610	5920	1910	7630	958	544	503
17	2170	3960	e2500	e2100	10800	6750	5620	1770	5550	942	552	494
18	2120	3850	e2300	e2600	10000	7520	4720	1910	4500	961	590	506
19	2080	3640	e2200	e2400	9310	6970	4010	3190	3970	1010	604	564
20	1820	3330	e2000	e2200	8650	6880	3690	3440	3610	980	670	716

21	1540	2820	e1900	e2100	7590	6990	3480	3190	3320	965	593	690
22	1390	2240	e1800	e1900	6660	6390	3650	2970	3150	893	666	674
23	1280	2020	e1700	e1800	5810	5840	3720	2800	3070	862	869	669
24	1220	2000	e1600	e1700	5620	5490	3650	2690	3000	844	1080	576
25	1160	1920	e1500	e1600	16500	4950	3200	2550	2850	859	999	548

26	1100	1810	e1450	e1550	21900	4500	2830	2350	2700	861	911	526
27	1050	1740	e1400	e1500	21700	4230	2650	2220	2570	834	857	504
28	1010	1690	e1350	e1500	21400	4020	2460	2270	2460	770	740	490
29	969	1960	e1350	2870	---	3620	2320	2180	2340	738	638	484
30	936	2050	e1300	14700	---	3680	2750	2240	2100	746	596	475

31	908	---	e1300	20500	---	3640	---	2250	---	720	590	---

TOTAL	65668	72054	53290	81870	328110	252570	119470	69950	205850	35373	21027	17732
MEAN	2118	2402	1719	2641	11720	8147	3982	2256	6862	1141	678	591
MAX	5150	4130	2700	20500	21900	21800	8510	3440	18000	1920	1080	802
MIN	667	841	1300	1200	5620	3620	2320	1730	2100	720	532	475
CFSM	.42	.47	.34	.52	2.30	1.60	.78	.44	1.35	.22	.13	.12
IN.	.48	.53	.39	.60	2.40	1.84	.87	.51	1.50	.26	.15	.13

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1910 - 2001, BY WATER YEAR (WY)
MEAN	1272	1727	2506	3344	4438	5352	6324	6169	4841	2850	1622	1114
MAX	12180	13180	18250	19580	14010	19590	25140	30570	20730	11480	15000	13180
(WY)	1994	1986	1983	1950	1968	1979	1922	1943	1974	1981	1981	1993
MIN	118	98.1	102	78.9	186	287	526	598	699	302	184	70.0
(WY)	1915	1915	1915	1918	1931	1941	1931	1954	1988	1911	1922	1922

SUMMARY STATISTICS	FOR 2000 CALENDAR YEAR		FOR 2001 WATER YEAR		WATER YEARS 1910 - 2001
ANNUAL TOTAL	602902		1322964
ANNUAL MEAN	1647		3625		3459
HIGHEST ANNUAL MEAN					8523	1993
LOWEST ANNUAL MEAN					516	1954
HIGHEST DAILY MEAN	12100	Jun 22	21900	Feb 26	120000	May 20 1943
LOWEST DAILY MEAN	240 A	Jan 26	475	Sep 30	45 B	C
ANNUAL SEVEN-DAY MINIMUM	257	Jan 23	515	Sep 24	45	Jan 21 1918
MAXIMUM PEAK FLOW			22300	Feb 26	123000	May 20 1943
MAXIMUM PEAK STAGE			16.57	Feb 26	25.63	May 20 1943
INSTANTANEOUS LOW FLOW			472	Sep 30
ANNUAL RUNOFF (CFSM)	.32		.71		.68
ANNUAL RUNOFF (INCHES)	4.40		9.66		9.23
10 PERCENT EXCEEDS	3860		9670		8930
50 PERCENT EXCEEDS	1090		1980		1600
90 PERCENT EXCEEDS	410		639		300

	A - Estimated, but may have been less during period of ice effect Jan. 20 to Feb. 6.
	B - Estimated.
	C - Jan. 21-31, 1918.